panzer: uite ce am gasit pe net: apple seeds are known to contain small amount of cyanide compounds; chewing enough of these produce symptoms of cyanide poisoning. There are many plants and many types of reactions from eating plants that can be labelled "toxic". Many of these reactions are minor or self-limiting. In most cases, toxicity is mild due to the small amounts ingested and to the fact that seeds or leaves may need to be well-chewed or digested to get the toxin out.